Finding the Fourth Proportional to 1,286,648.36, 1,775,540.46 and 742,765.76
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Solution
The fourth proportional to 1,286,648.36, 1,775,540.46 and 742,765.76 is: 1,024,996.96
Step by Step Solution
- Step 1: Write the proportion equation
1,286,648.36 : 1,775,540.46 = 742,765.76 : x - Step 2: Convert to fraction form
1,286,648.36/1,775,540.46 = 742,765.76/x - Step 3: Cross multiply
1,286,648.36x = 1,775,540.46 × 742,765.76 - Step 4: Simplify right side
1,286,648.36x = 1,318,810,659,182.65 - Step 5: Solve for x
x = 1,318,810,659,182.65/1,286,648.36 - Step 6: Final answer
x = 1,024,996.96
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.